1061643366 has 24 divisors (see below), whose sum is σ = 2628831504. Its totient is φ = 303326640.

The previous prime is 1061643347. The next prime is 1061643403. The reversal of 1061643366 is 6633461601.

1061643366 is a `hidden beast` number, since 1 + 0 + 6 + 1 + 643 + 3 + 6 + 6 = 666.

It is a super-2 number, since 2×1061643366² = 2254173273143619912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1061643366.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4212745 + ... + 4212996.

It is an arithmetic number, because the mean of its divisors is an integer number (109534646).

Almost surely, 2^1061643366 is an apocalyptic number.

1061643366 is an abundant number, since it is smaller than the sum of its proper divisors (1567188138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1061643366 is a wasteful number, since it uses less digits than its factorization.

1061643366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8425756 (or 8425753 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 1061643366 is about 32582.8692106757. The cubic root of 1061643366 is about 1020.1394676652.

The spelling of 1061643366 in words is "one billion, sixty-one million, six hundred forty-three thousand, three hundred sixty-six".